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After you do what lemmingglee mentioned, don't reuse the old mount bolts, the are tourque-to-yield type bolts, and can only be safely used once. Replacements can be found at any hardware store. Keep it safe!

The pins / wedges just tap out use a scewdriver on the metal edge of the pin just tap it out to the rear and when putting them back in just tap them back in from the front. You will see they are diamond shape and metal cased around rubber very easy to do just take your time.

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Loosen lug nuts from the front wheels with the ratchet and socket, but do not remove them.

Raise the front of the vehicle using the floor jack and secure it with jack stands.

Remove the lug nuts from the wheels and pull the wheels from the vehicle.

Look on the rear of the brake caliper and locate the caliper bolts, one upper and one lower.

Loosen and remove the upper and lower caliper bolts using the ratchet and socket.

Pull the caliper from the brake assembly, exposing the brake
pads, and hang the caliper from a suspension component, using the bungee
strap. Do not allow the caliper to hang by its hose, as this may cause
damage.

Grasp the inner and outer brake pads and pull them from the
brake assembly. Take note of how they were positioned, as the new brake
pads must be placed in the same fashion.

Place the new brake pads on the brake assembly in the same position the old ones were.

Position the c-clamp over the caliper so the screw portion is
contacting the the caliper's piston--the metal cylindrical object inside
the caliper--and the fixed portion of the clamp is contacting the rear
of the caliper.

Tighten the c-clamp until the caliper's piston is fully
pressed into the calipers body. The top of the piston is even with the
caliper body when fully pressed in.

Loosen the c-clamp and remove it from the caliper.

Place the caliper over the new brake pads and hand-tighten the upper and lower caliper bolts.

Tighten the upper and lower caliper bolts to 26-foot pounds, using the torque wrench and a socket.

Repeat Steps 4 through 13 for the brake pads on the other side of the vehicle.

Place the wheels back on the vehicle and hand-tighten the lug nuts.

Remove the jack stands from under the vehicle and gently lower it to the ground.

Tighten the lug nuts to 100-foot pounds using the torque wrench and a socket.

You'll want to remove the two bolts that hold on the caliper. Remove the caliper and brake pads. You'll need to collapse the caliper piston back into the caliper to get the caliper on with the new brake pads. You can use a C-clamp, or a caliper piston tool to push it back in. I would remove the reservoir cap when you collapse the piston into the caliper.

Loosen tire lug nuts. Jack up the car and remove lug nuts and tire. Remove two bolts holding the caliper in place. Remove the the two bolts holding pads in place. Hang caliper with a wire from wheel so brake line is not stressed. Mount new calipers in correctly and tigthen pad bolts. Put caliper on and tighten caliper bolts. Replace tire and lugs nuts. Jack car down and tigheten lug nuts.

YOU NEED REMOVE A LITTLE BRAKE FLUID FROM MASTER CYLINDER.THEN YOU RAISE VECHICLE SAFELY.SUPPORT IT WITH JACK STAND.MAKE SURE VECHICLE IS ON LEVEL SOLID GROUND.REMOVE TIRE OR WHEEL.THEN YOU NEED A LARGE C - CLAMP.PLACE C - CLAMP OVER BRAKE CALIPER AND BRAKE SHOE BACKING.TIGHTEN C - CLAMP JUST ENOUGH PUSH CALIPER PISTON BACK IN CYLINDER BORE TO REMOVE CALIPERS FROM ROTORS.TO REMOVE BRAKE CALIPER YOU NEED 2 OPEN AND BOX END WRENCHES ONE TO HOLD CALIPER SLIDE PINS AND THE OTHER WRENCH FOR LOOSEN CALIPER BOLTS.THEN YOU REMOVE CALIPER AND REPLACE FRONT BRAKE SHOES.IF YOU NEED TO REMOVE BRAKE ROTORS JUST REMOVE THE BRAKE CALIPER CARRIER SUPPORT BOLTS THE REMOVE THE BRAKE CALIPER CARRIER SUPPORT THEN REMOVE ROTOR.YOU NEED TO REPLACE BOLTS WITH NEWS AND USE LOCK TIGHT.THEN YOU PUT IN NEW BRAKE PADS IN CALIPER PUT CALIPER BACK ON SUPPORT CARRIER.REPLACE WITH NEW BOLTS USE LOCK TIGHT THEN TORQUE BOLTS TO 26 FT LBS.MAKE SURE MASTER CYLINDER COVER IN PLACE.WHEN YOU FINISH REPLACING BOTH FRONT BRAKE PADS PUMP BRAKE PEDAL TO SEAT BRAKE SHOES AGAINST BRAKE ROTORS SO YOU WILL HAVE FIRM BRAKES WHEN YOU APPLY THEM. THEN CHECK YOUR BRAKE FLUID LEVEL IN MASTER CYLINDER MAKE SURE ITS NOT LOW. MAKE SURE YOU HAVE FIRM BRAKES BEFORE DRIVING.IF YOU HAVE ANY PROBLEMS CHANGING FRONT BRAKE PADS YOU CAN GO TO ANY AUTO PARTS STORE AND BUY A HAYNES REPAIR MANUAL.

BRAKE HOSE BOLT IS STILL CONNECTED YOU HAVE TO LOOSEN AND REMOVE BRAKE HOSE BOLT BEFORE CALIPERS COME OFF.THE COPPER WASHERS THAT CAME OUT WITH BRAKE HOSE BOLT HAS TO BE REPLACED THEY ARE SEALS THEY WILL LEAK IF REUSE THEM.

CHANGING FRONT BRAKE PADSJack up the car.Take off your tire.Find the bolt on the back of the caliper and take it off.This should release the caliper, pull the caliper off the disc.Now you should be able to take the pad out.Replace the pad.You'll need a special tool to reset the caliper. As the brakes wear down, the caliper gets tighter so the brakes still work. I'm not sure exactly what its called, but you can borrow one from auto zone. Follow the instructions that come with it to reset the caliper.Slide the caliper back over the disc. If it doesn't go on, you need to reset the caliper more.Put the relese bolt back in.Put your tire back on.Drive slowly and test the brakes.CHANGING THE REAR BRAKE PADSThe rear brakes on the rx8 are a bit different than most setups...be careful! The only way to move the piston back into the caliper is by way of a special allen head bolt that is directly behind the piston, on the back side of the caliper, installed under a 14mm bolt.You have to remove this bolt to gain access to the allen head. As you loosen the allen head bolt(counter-clockwise), the piston will move back into the caliper.Installation is pretty typical, again, the allen head bolt being the unusual part. The manual says to tighten this bolt until the pads contact the rotor, then loosen the bolt 1/3rd of a turn, then reinstall the 14mm bolt.